Because you like Mary Margaret Blanchard in Once Upon a Time
Gruff and sarcastic, Detective Harry Dresden use unconventional ways to track down perps, including using magic and the supernatural. See them in The Dresden Files.
If there's power in being average, Mikado Ryugamine will find it and use it. See them in Durarara!!.
Just a hint of human emotion lurks under the enigmatic exterior of Rei Ayanami. See them in Neon Genesis Evangelion.
Gruff and efficient, Sam Fisher protects a nation that can never admit he exists. See them in Tom Clancy's Splinter Cell.
Eren Jaeger will erase the Titans from this world until not a single one remains. See them in Attack on Titan.
Given his ability to wrench street signs from the ground, Shizuo Heiwajima is a useful one to have in dangerous Ikekuburo. See them in Durarara!!.
Years of brutal winters, foreign invasions, and crippling loneliness have left Russia's mental state far from wholly intact. See them in Axis Powers Hetalia.
Saul Goodman can get just about any lying crook off the hook in court. Well, as long as he can make a buck out of it. See them in Breaking Bad.
An ironic hipster with a healthy dose of self-deprecation, Dave strives to be cool at all costs. See them in Homestuck.
A crabby troll, Karkat Vantas is perpetually angry about his lot in life. See them in Homestuck.
When it comes to Haruko Haruhara, there's more to the pink-haired biker than meets the eye. See them in FLCL.